lacunar

Definitions

Construction

  • Having sunken or recessed panels, as in a soffit or ceiling panel.

Medical

  • adjective relating to hollows or cavities in tissue such as in bone or cartilage, especially ones that are unusual

Sports

  • adjective used for describing hollows or cavities in tissue such as in bone or cartilage, especially ones that are unusual
http://www.dictionarycentral.com/definition/lacunar.html